Measurement of Technical Efficiency of Paddy Farms at Jhenaidah District in Bangladesh: A Case Study by Using Cobb Douglas Production Function. Journal of Pharmaceutical Negative Results, [S. l.], v. 13, n. 4, p. 652–658, 2022. DOI: 10.47750/pnr.2022.13.04.087. Disponível em: https://www.pnrjournal.com/index.php/home/article/view/2180.. Acesso em: 23 jun. 2026.